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weston/libweston/color-lcms/color-lcms.h

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/*
* Copyright 2021 Collabora, Ltd.
* Copyright 2021 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef WESTON_COLOR_LCMS_H
#define WESTON_COLOR_LCMS_H
#include <lcms2.h>
#include <libweston/libweston.h>
#include "color.h"
#include "shared/helpers.h"
struct weston_color_manager_lcms {
struct weston_color_manager base;
cmsContext lcms_ctx;
struct wl_list color_transform_list; /* cmlcms_color_transform::link */
struct wl_list color_profile_list; /* cmlcms_color_profile::link */
};
static inline struct weston_color_manager_lcms *
get_cmlcms(struct weston_color_manager *cm_base)
{
return container_of(cm_base, struct weston_color_manager_lcms, base);
}
struct cmlcms_md5_sum {
uint8_t bytes[16];
};
struct cmlcms_color_profile {
struct weston_color_profile base;
/* struct weston_color_manager_lcms::color_profile_list */
struct wl_list link;
cmsHPROFILE profile;
struct cmlcms_md5_sum md5sum;
};
static inline struct cmlcms_color_profile *
get_cprof(struct weston_color_profile *cprof_base)
{
return container_of(cprof_base, struct cmlcms_color_profile, base);
}
bool
cmlcms_get_color_profile_from_icc(struct weston_color_manager *cm,
const void *icc_data,
size_t icc_len,
const char *name_part,
struct weston_color_profile **cprof_out,
char **errmsg);
void
cmlcms_destroy_color_profile(struct weston_color_profile *cprof_base);
/*
* Perhaps a placeholder, until we get actual color spaces involved and
* see how this would work better.
*/
enum cmlcms_color_transform_type {
CMLCMS_TYPE_EOTF_sRGB = 0,
CMLCMS_TYPE_EOTF_sRGB_INV,
CMLCMS_TYPE__END,
};
struct cmlcms_color_transform_search_param {
enum cmlcms_color_transform_type type;
};
struct cmlcms_color_transform {
struct weston_color_transform base;
/* weston_color_manager_lcms::color_transform_list */
struct wl_list link;
struct cmlcms_color_transform_search_param search_key;
/* for EOTF types */
cmsToneCurve *curve;
};
static inline struct cmlcms_color_transform *
get_xform(struct weston_color_transform *xform_base)
{
return container_of(xform_base, struct cmlcms_color_transform, base);
}
struct cmlcms_color_transform *
cmlcms_color_transform_get(struct weston_color_manager_lcms *cm,
const struct cmlcms_color_transform_search_param *param);
void
cmlcms_color_transform_destroy(struct cmlcms_color_transform *xform);
#endif /* WESTON_COLOR_LCMS_H */